Remove WebSub subscriptions (#11303)

app/models/concerns/account_associations.rb

@@ -30,9 +30,6 @@ module AccountAssociations
     has_many :media_attachments, dependent: :destroy
     has_many :polls, dependent: :destroy
 
-    # PuSH subscriptions
-    has_many :subscriptions, dependent: :destroy
-
     # Report relationships
     has_many :reports, dependent: :destroy, inverse_of: :account
     has_many :targeted_reports, class_name: 'Report', foreign_key: :target_account_id, dependent: :destroy, inverse_of: :target_account

app/models/subscription.rb

@@ -1,62 +0,0 @@
-# frozen_string_literal: true
-# == Schema Information
-#
-# Table name: subscriptions
-#
-#  id                          :bigint(8)        not null, primary key
-#  callback_url                :string           default(""), not null
-#  secret                      :string
-#  expires_at                  :datetime
-#  confirmed                   :boolean          default(FALSE), not null
-#  created_at                  :datetime         not null
-#  updated_at                  :datetime         not null
-#  last_successful_delivery_at :datetime
-#  domain                      :string
-#  account_id                  :bigint(8)        not null
-#
-
-class Subscription < ApplicationRecord
-  MIN_EXPIRATION = 1.day.to_i
-  MAX_EXPIRATION = 30.days.to_i
-
-  belongs_to :account
-
-  validates :callback_url, presence: true
-  validates :callback_url, uniqueness: { scope: :account_id }
-
-  scope :confirmed, -> { where(confirmed: true) }
-  scope :future_expiration, -> { where(arel_table[:expires_at].gt(Time.now.utc)) }
-  scope :expired, -> { where(arel_table[:expires_at].lt(Time.now.utc)) }
-  scope :active, -> { confirmed.future_expiration }
-
-  def lease_seconds=(value)
-    self.expires_at = future_expiration(value)
-  end
-
-  def lease_seconds
-    (expires_at - Time.now.utc).to_i
-  end
-
-  def expired?
-    Time.now.utc > expires_at
-  end
-
-  before_validation :set_min_expiration
-
-  private
-
-  def future_expiration(value)
-    Time.now.utc + future_offset(value).seconds
-  end
-
-  def future_offset(seconds)
-    [
-      [MIN_EXPIRATION, seconds.to_i].max,
-      MAX_EXPIRATION,
-    ].min
-  end
-
-  def set_min_expiration
-    self.lease_seconds = 0 unless expires_at
-  end
-end

app/policies/subscription_policy.rb

@@ -1,7 +0,0 @@
-# frozen_string_literal: true
-
-class SubscriptionPolicy < ApplicationPolicy
-  def index?
-    admin?
-  end
-end

app/services/suspend_account_service.rb

@@ -24,7 +24,6 @@ class SuspendAccountService < BaseService
     report_notes
     scheduled_statuses
     status_pins
-    subscriptions
   ).freeze
 
   ASSOCIATIONS_ON_DESTROY = %w(

app/workers/scheduler/subscriptions_cleanup_scheduler.rb

@@ -5,7 +5,5 @@ class Scheduler::SubscriptionsCleanupScheduler
 
   sidekiq_options unique: :until_executed, retry: 0
 
-  def perform
+  def perform; end
-    Subscription.expired.in_batches.delete_all
-  end
 end

config/sidekiq.yml

@@ -21,9 +21,6 @@
   user_cleanup_scheduler:
     cron: '<%= Random.rand(0..59) %> <%= Random.rand(4..6) %> * * *'
     class: Scheduler::UserCleanupScheduler
-  subscriptions_cleanup_scheduler:
-    cron: '<%= Random.rand(0..59) %> <%= Random.rand(1..3) %> * * 0'
-    class: Scheduler::SubscriptionsCleanupScheduler
   ip_cleanup_scheduler:
     cron: '<%= Random.rand(0..59) %> <%= Random.rand(3..5) %> * * *'
     class: Scheduler::IpCleanupScheduler

db/post_migrate/20190715031050_drop_subscriptions.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class DropSubscriptions < ActiveRecord::Migration[5.2]
+  def up
+    drop_table :subscriptions
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration
+  end
+end

db/schema.rb

@@ -648,19 +648,6 @@ ActiveRecord::Schema.define(version: 2019_07_15_164535) do
     t.index ["tag_id", "status_id"], name: "index_statuses_tags_on_tag_id_and_status_id", unique: true
   end
 
-  create_table "subscriptions", force: :cascade do |t|
-    t.string "callback_url", default: "", null: false
-    t.string "secret"
-    t.datetime "expires_at"
-    t.boolean "confirmed", default: false, null: false
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-    t.datetime "last_successful_delivery_at"
-    t.string "domain"
-    t.bigint "account_id", null: false
-    t.index ["account_id", "callback_url"], name: "index_subscriptions_on_account_id_and_callback_url", unique: true
-  end
-
   create_table "tags", force: :cascade do |t|
     t.string "name", default: "", null: false
     t.datetime "created_at", null: false
@@ -821,7 +808,6 @@ ActiveRecord::Schema.define(version: 2019_07_15_164535) do
   add_foreign_key "statuses", "statuses", column: "reblog_of_id", on_delete: :cascade
   add_foreign_key "statuses_tags", "statuses", on_delete: :cascade
   add_foreign_key "statuses_tags", "tags", name: "fk_3081861e21", on_delete: :cascade
-  add_foreign_key "subscriptions", "accounts", name: "fk_9847d1cbb5", on_delete: :cascade
   add_foreign_key "tombstones", "accounts", on_delete: :cascade
   add_foreign_key "user_invite_requests", "users", on_delete: :cascade
   add_foreign_key "users", "accounts", name: "fk_50500f500d", on_delete: :cascade

spec/fabricators/subscription_fabricator.rb

@@ -1,7 +0,0 @@
-Fabricator(:subscription) do
-  account
-  callback_url "http://example.com/callback"
-  secret       "foobar"
-  expires_at   "2016-11-28 11:30:07"
-  confirmed    false
-end

spec/models/subscription_spec.rb

@@ -1,67 +0,0 @@
-require 'rails_helper'
-
-RSpec.describe Subscription, type: :model do
-  let(:alice) { Fabricate(:account, username: 'alice') }
-
-  subject { Fabricate(:subscription, account: alice) }
-
-  describe '#expired?' do
-    it 'return true when expires_at is past' do
-      subject.expires_at = 2.days.ago
-      expect(subject.expired?).to be true
-    end
-
-    it 'return false when expires_at is future' do
-      subject.expires_at = 2.days.from_now
-      expect(subject.expired?).to be false
-    end
-  end
-
-  describe 'lease_seconds' do
-    it 'returns the time remaining until expiration' do
-      datetime = 1.day.from_now
-      subscription = Subscription.new(expires_at: datetime)
-      travel_to(datetime - 12.hours) do
-        expect(subscription.lease_seconds).to eq(12.hours)
-      end
-    end
-  end
-
-  describe 'lease_seconds=' do
-    it 'sets expires_at to min expiration when small value is provided' do
-      subscription = Subscription.new
-      datetime = 1.day.from_now
-      too_low = Subscription::MIN_EXPIRATION - 1000
-      travel_to(datetime) do
-        subscription.lease_seconds = too_low
-      end
-
-      expected = datetime + Subscription::MIN_EXPIRATION.seconds
-      expect(subscription.expires_at).to be_within(1.0).of(expected)
-    end
-
-    it 'sets expires_at to value when valid value is provided' do
-      subscription = Subscription.new
-      datetime = 1.day.from_now
-      valid = Subscription::MIN_EXPIRATION + 1000
-      travel_to(datetime) do
-        subscription.lease_seconds = valid
-      end
-
-      expected = datetime + valid.seconds
-      expect(subscription.expires_at).to be_within(1.0).of(expected)
-    end
-
-    it 'sets expires_at to max expiration when large value is provided' do
-      subscription = Subscription.new
-      datetime = 1.day.from_now
-      too_high = Subscription::MAX_EXPIRATION + 1000
-      travel_to(datetime) do
-        subscription.lease_seconds = too_high
-      end
-
-      expected = datetime + Subscription::MAX_EXPIRATION.seconds
-      expect(subscription.expires_at).to be_within(1.0).of(expected)
-    end
-  end
-end

spec/policies/subscription_policy_spec.rb

@@ -1,24 +0,0 @@
-# frozen_string_literal: true
-
-require 'rails_helper'
-require 'pundit/rspec'
-
-RSpec.describe SubscriptionPolicy do
-  let(:subject) { described_class }
-  let(:admin)   { Fabricate(:user, admin: true).account }
-  let(:john)    { Fabricate(:user).account }
-
-  permissions :index? do
-    context 'admin?' do
-      it 'permits' do
-        expect(subject).to permit(admin, Subscription)
-      end
-    end
-
-    context '!admin?' do
-      it 'denies' do
-        expect(subject).to_not permit(john, Subscription)
-      end
-    end
-  end
-end

spec/services/batched_remove_status_service_spec.rb

@@ -14,11 +14,8 @@ RSpec.describe BatchedRemoveStatusService, type: :service do
   before do
     allow(Redis.current).to receive_messages(publish: nil)
 
-    stub_request(:post, 'http://example.com/push').to_return(status: 200, body: '', headers: {})
-    stub_request(:post, 'http://example.com/salmon').to_return(status: 200, body: '', headers: {})
     stub_request(:post, 'http://example.com/inbox').to_return(status: 200)
 
-    Fabricate(:subscription, account: alice, callback_url: 'http://example.com/push', confirmed: true, expires_at: 30.days.from_now)
     jeff.user.update(current_sign_in_at: Time.zone.now)
     jeff.follow!(alice)
     hank.follow!(alice)

spec/services/remove_status_service_spec.rb

@@ -10,12 +10,9 @@ RSpec.describe RemoveStatusService, type: :service do
   let!(:bill)   { Fabricate(:account, username: 'bill', protocol: :activitypub, domain: 'example2.com', inbox_url: 'http://example2.com/inbox') }
 
   before do
-    stub_request(:post, 'http://example.com/push').to_return(status: 200, body: '', headers: {})
-    stub_request(:post, 'http://example.com/salmon').to_return(status: 200, body: '', headers: {})
     stub_request(:post, 'http://example.com/inbox').to_return(status: 200)
     stub_request(:post, 'http://example2.com/inbox').to_return(status: 200)
 
-    Fabricate(:subscription, account: alice, callback_url: 'http://example.com/push', confirmed: true, expires_at: 30.days.from_now)
     jeff.follow!(alice)
     hank.follow!(alice)
 

spec/services/suspend_account_service_spec.rb

@@ -18,7 +18,6 @@ RSpec.describe SuspendAccountService, type: :service do
     let!(:favourite) { Fabricate(:favourite, account: account) }
     let!(:active_relationship) { Fabricate(:follow, account: account) }
     let!(:passive_relationship) { Fabricate(:follow, target_account: account) }
-    let!(:subscription) { Fabricate(:subscription, account: account) }
     let!(:remote_alice) { Fabricate(:account, inbox_url: 'https://alice.com/inbox', protocol: :activitypub) }
     let!(:remote_bob) { Fabricate(:account, inbox_url: 'https://bob.com/inbox', protocol: :activitypub) }
 
@@ -31,9 +30,8 @@ RSpec.describe SuspendAccountService, type: :service do
           account.favourites,
           account.active_relationships,
           account.passive_relationships,
-          account.subscriptions
         ].map(&:count)
-      }.from([1, 1, 1, 1, 1, 1, 1]).to([0, 0, 0, 0, 0, 0, 0])
+      }.from([1, 1, 1, 1, 1, 1]).to([0, 0, 0, 0, 0, 0])
     end
 
     it 'sends a delete actor activity to all known inboxes' do
@@ -62,7 +60,6 @@ RSpec.describe SuspendAccountService, type: :service do
     let!(:favourite) { Fabricate(:favourite, account: remote_bob) }
     let!(:active_relationship) { Fabricate(:follow, account: remote_bob, target_account: account) }
     let!(:passive_relationship) { Fabricate(:follow, target_account: remote_bob) }
-    let!(:subscription) { Fabricate(:subscription, account: remote_bob) }
 
     it 'deletes associated records' do
       is_expected.to change {
@@ -73,9 +70,8 @@ RSpec.describe SuspendAccountService, type: :service do
           remote_bob.favourites,
           remote_bob.active_relationships,
           remote_bob.passive_relationships,
-          remote_bob.subscriptions
         ].map(&:count)
-      }.from([1, 1, 1, 1, 1, 1, 1]).to([0, 0, 0, 0, 0, 0, 0])
+      }.from([1, 1, 1, 1, 1, 1]).to([0, 0, 0, 0, 0, 0])
     end
 
     it 'sends a reject follow to follwer inboxes' do